Millimeter wave wide beam microstrip array antenna
A technology of microstrip array and wide beam, applied in the direction of antenna, slot antenna, antenna array, etc., can solve the problems of inability to realize integrated design of antenna board, weak structure strength, high mold opening cost, etc., and achieve low beam scanning gain reduction, processing Convenience, simple design effect
Pending Publication Date: 2021-11-16
KINGSIGNAL TECHNOLOGY CO LTD
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Problems solved by technology
[0005] (2) Guide sheets and spacers to reduce the spatial radiation coupling of the radiating unit: Since the guide sheets, spacers and other devices need to be placed directly above the antenna board at a certain height interval, it is impossible to achieve integrated design with the antenna board
In addition, at present, support guide sheets, spacers and other devices generally use molded plastic parts, foam boards, etc. The molded plastic parts have high structural strength and can be partially electroplated, but the cost of mold opening is high and modification is extremely inconvenient. The change needs to re-open the mold design, the foam board is cheap and easy to modify, but the structural strength is weak and the assembly cost is high
Method used
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[0044] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0045] In view of the fact that the structure formed by this design method is applicable to any frequency band of millimeter wave and any antenna polarization mode, for the convenience of description, the working frequency band of the device involved in this embodiment is 17.7GHz-21.2GHz, and the antenna polarization mode is double circular pole change.
[0046] Such as figure 1 As shown, the millimeter-wave wide-beam microstrip array antenna includes: a first PCB substrate 1, a supporting PCB board 2, a radiation sheet 3, a guide sheet 4, a spacer sheet 5, a metal via hole 6, a slot 7 and a second PCB substrate 8; this structure diagram is a 4x4 small array, with 4 unit...
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Abstract
The invention discloses a millimeter wave wide beam microstrip array antenna, which comprises a first PCB substrate (1), a supporting PCB (2), a guide sheet (4) and a second PCB substrate (8), the supporting PCB (2) is arranged between the first PCB substrate (1) and the second PCB substrate (8) so as to fix the second PCB substrate (8) right above the first PCB substrate (1), the supporting PCB (2) is provided with a plurality of metal via holes (6), the metal via holes (6) are arranged at equal intervals according to a certain rule, and the intervals are set according to the working frequency band of the microstrip array antenna; and the guide sheet (4) is arranged on the second PCB substrate (8) and forms a single-sided board together with the second PCB substrate (8). Through the above mode, the guide sheet is supported by the supporting PCB, the shape of the guide sheet can be cut at will according to requirements, and the metalized via holes can be further added in the supporting PCB, thereby playing a role in metal shielding, and reducing the coupling effect among a plurality of wide-beam radiation units.
Description
technical field [0001] The invention belongs to the technical field of satellite communication equipment, and in particular relates to a millimeter-wave wide-beam microstrip array antenna. Background technique [0002] As a device for vehicle radar to send and receive electromagnetic waves, the antenna plays a vital role in automotive radar sensors. In the satellite communication ground terminal products, in the early automotive radar systems, the flat horn array antenna was often used. The horn array antenna has the advantages of high radiation efficiency and excellent cross-polarization discrimination, but it also has the disadvantages of being unable to scan electronically and having a high profile. , Can not be integrated design shortcomings. In order to solve the scanning problem, it is necessary to add components such as mechanical rotating motors and bearing antennas inside the antenna, which will undoubtedly increase the cost and weight of the whole machine, thus fa...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H01Q21/00H01Q13/10H01Q1/36
CPCH01Q21/00H01Q13/10H01Q1/36
Inventor 胡茂兵胡国云
Owner KINGSIGNAL TECHNOLOGY CO LTD